SIRDS or SIS is an image giving a three-dimensional representation of a solid object or surface, and it does not require any equipment such as red & blue or polarized 3D glasses to view the stereo scene. You just need to learn how to view it in certain way with your own eyes.

SIRDS or SIS is an image giving a three-dimensional representation of a solid object or surface, and it does not require any equipment such as red & blue or polarized 3D glasses to view the stereo scene. You just need to learn how to view it in certain way with your own eyes.